CN104475574A - Cold bending die using oil hydraulic press to conduct profile cold bending and cold bending method - Google Patents
Cold bending die using oil hydraulic press to conduct profile cold bending and cold bending method Download PDFInfo
- Publication number
- CN104475574A CN104475574A CN201410692894.5A CN201410692894A CN104475574A CN 104475574 A CN104475574 A CN 104475574A CN 201410692894 A CN201410692894 A CN 201410692894A CN 104475574 A CN104475574 A CN 104475574A
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- Prior art keywords
- section bar
- module
- clod wash
- hydraulic press
- stuck
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
Abstract
The invention relates to a cold bending die using an oil hydraulic press to conduct profile cold bending, which is used for cold bending processing of linear profile steel in a ship structure, the cold bending die comprises a die base, a fixed die block, a sliding die block, and upper and lower templates, two profile linear shapes, positive and negative, can be bent through replacing the die base, replaced and installed on the oil hydraulic press for use, and installed at the position of a main pressure cylinder (upper pressure head) of the oil hydraulic press so as to change the vertically downward mechanical force of the oil hydraulic press into lateral force through two inclined planes of the die to achieve the purpose of extrusion molding, and all profiles have different bending linear properties for adapting to the ship structure. The cold bending die and processing method disclosed by the patent for invention are supposed to reduce the finishing allowance during the profile cold bending, lower the ship building cost, improve the production efficiency, and solve the technical issue of super short profile processing molding.
Description
Technical field
The present invention relates to machining, be related specifically to the clod wash mould and the clod wash processing method that utilize hydraulic press to carry out section bar clod wash.
Background technology
Along with the fast development of modern science and technology, the appearance of cold-frame bender, in making, small lot, the processing of section bar part obtains good solution.As the important procedure shape extrusion of shipbuilding, it is very high to the required precision of cold-frame bender, and cold-frame bender is for serving vital effect now down to precision shipbuilding in the future.
Curved shaped steel in Ship Structure bends and bends making by 400T cold-frame bender.But, due to the limitation of cold-frame bender equipment, the allowance (each 350 ㎜ in two ends) of 700 ㎜ must placed when section bar clod wash, cause a large amount of wastes of material like this, and length at all cannot clod wash at the section bar of about 1M, cold-frame bender mid frame and the left and right frame clearance distance of usual configuration are 600 ㎜, so a bending root type steel is by the waste of the allowance of generation 1200 ㎜, need various for shaped steel such as shipbuildings and measure large industry, a large amount of wastes of material can be caused like this.The most important is, length at all cannot clod wash at the shaped steel use cold-frame bender of about 1M.In this case, short shaped steel must carry out manual operation by firer, needs first to carry out shaped steel heating, then carries out brake forming to the shaped steel after heating.The shaped steel hot bending of a 1M length needs 2 people operate 2 hours used times, and forming quality is poor, material character changes through curing.The bending machining workload of carrying out the ultrashort rib of boats and ships and vertical bone is very large, the shaped steel of about length 1M is wasted time and energy at shaped steel hot bending, distortion after the material cooled down makes again Mass accuracy be difficult to control, and operating efficiency is slow, to become one of bottleneck of thing amount lifting.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of hydraulic press that utilizes newly to carry out clod wash mould and the processing technology of section bar clod wash.The clod wash mould of patent of the present invention and processing method want allowance when can reduce section bar clod wash, reduce shipbuilding cost, enhance productivity, solve the technical task of ultrashort section bar machine-shaping.
In order to reach foregoing invention object, the technical scheme that patent of the present invention provides is as follows:
A kind of clod wash mould utilizing hydraulic press to carry out section bar clod wash, this hydraulic press is provided with principal pressure cylinder and operation platform, this principal pressure cylinder bottom is push-down head vertically downward, this push-down head is downwards just to described operation platform, it is characterized in that, described clod wash mould includes stuck-module, roll-off module, mold base and bolster, described stuck-module entirety is the right angled triangle stood upside down, the inclination angle of its hypotenuse is 45 degree, described roll-off module is upright right angled triangle, the inclination angle of its hypotenuse is 45 degree, the top of described stuck-module is fixed on described push-down head, described roll-off module and stuck-module are close together by inclined-plane, the stroke apparatus playing fixation is provided with between roll-off module and stuck-module, described mold base is fixed on described operation platform, this mold base is provided with madial wall, construction surface and outer lug, the side of described stuck-module can be close on described madial wall up or down, cope match-plate pattern in described bolster is fixed on the bottom surface of described roll-off module, lower bolster in bolster is fixed near described outer lug in construction surface, and what described lower bolster and cope match-plate pattern are relatively provided with for section bar cold roll forming is linear.
Utilize hydraulic press to carry out in the clod wash mould of section bar clod wash in the present invention, the height of described stuck-module is 2/3 of the effective impulse stroke of hydraulic press, and the topside area of this stuck-module is identical with the area of described seaming chuck.
Hydraulic press is utilized to carry out in the clod wash mould of section bar clod wash in the present invention, described stroke apparatus is the buckling body of the band draw-in groove being arranged at stuck-module and roll-off module both sides, the both sides of described stuck-module and roll-off module are equipped with fin near the incline position place contacted, and described fin is embedded in corresponding draw-in groove respectively.
Utilize hydraulic press to carry out in the clod wash mould of section bar clod wash in the present invention, described section bar includes angle steel, flat-bulb steel and half rounds, this section bar is equipped with into adapting to the linearly differently curved of Ship Structure.
Utilize hydraulic press to carry out in the clod wash mould of section bar clod wash in the present invention, the bottom of described roll-off module is provided with an embedded groove, and described cope match-plate pattern can be located in embedded groove with plugging.
Utilize above-mentioned clod wash mould to carry out a method for section bar clod wash, it is characterized in that, the method includes following steps:
The first step, according to specification requirement and the curved linear of boats and ships upper sectional material, the type of selected linear section bar, calculate curved linear flexibility, and on section bar, mark anti-straight line, this anti-straight line is turned into straight line after section bar cold roll forming;
Second step, installation clod wash mould on hydraulic press, and need selected good described bolster according to linear, prepare clod wash operation after carrying out construction debugging;
3rd step, by profile hoisting on described clod wash mould, first from one end, carry out clod wash operation, the principal pressure cylinder push-down head of hydraulic press produces pressure vertically downward, this pressure produces the pressure outside Vertical dimension through 45 degree of slide surfaces of stuck-module and roll-off module, this vertical pressure produces folding force by described cope match-plate pattern and lower bolster to described section bar, and owing to being provided with the linear face of section bar bending between described cope match-plate pattern and lower bolster, this section bar slowly produces distortion;
4th step, observes the anti-straight line on section bar when section bar is out of shape gradually, when the anti-straight line at position to be deformed becomes straight line, the hydraulic press described in time-out, stops the section bar described in extruding;
5th step, change the extrusion position of described section bar, the hydraulic press continued described in opening carries out profile extrusion until described anti-straight line becomes straight line, complete the bending operation of described section bar, this section bar cold roll forming, whether final detection section bar is qualified, proceeds extruding adjustment until qualified if defective.
Carry out in the method for section bar clod wash at the above-mentioned clod wash mould that utilizes, when the principal pressure cylinder of described hydraulic press rises, stuck-module rises with seaming chuck, described roll-off module produces moving backward of equivalent climb under stroke apparatus with the ramp effect be close to, and reserves section bar feed entrance point between described cope match-plate pattern and lower bolster.
Carry out in the method for section bar clod wash at the above-mentioned clod wash mould that utilizes, be fixed on the cope match-plate pattern on roll-off module and be fixed between the lower bolster in mold base construction surface and be provided with linear groove, section bar linear groove between cope match-plate pattern and lower bolster forms three fulcrums, and described section bar is formed equidistant bending when the push-down head of hydraulic press declines.
Based on technique scheme, the clod wash mould of patent of the present invention and cold bending shaping method compared with prior art have following technological merit:
1. the present invention is by solving a clod wash difficult problem for ultrashort section bar to the exploitation of hydraulic press section bar clod wash mould, multianalysis and discussion is carried out in technical, the key element such as operability and economy, be not limited to the constraint of common process, propose the new process that ultrashort section bar cold roll forming replaces manual hot briquetting, and work out corresponding content of operation and technical measures for this reason.From theory and practice two aspects, solve the technical task of ultrashort section bar machine-shaping.
2. hydraulic press section bar clod wash mould of the present invention, can foreshorten to 300 ㎜ (each 150 ㎜ in two ends), not only can bend the section bar within 1M by section bar clod wash surplus, and can clod wash half rounds.If by firer's hot-working bent section, the shaped steel hot bending of a 1M length needs 2 people operate 2 hours used times, and forming quality is poor, material character changes through curing.Need 3 people to operate the shaped steel that only just need can bend a 1M length for 5 minutes if use hydraulic press shaped steel clod wash mould of the present invention to carry out bending machining, its economic benefit is original 16 times simultaneously.Statistics effect is as shown in the table:
| Work flow | Staffing | Activity duration | Shaping rate | To Effect of Materials |
| Firer bends | 2 | 120 minutes | Repeatedly be shaped | Fragility increases |
| Cold stamping die bends | 3 | 5 minutes | Once-forming | Nothing |
Accompanying drawing explanation
Fig. 1 is that the present invention utilizes hydraulic press to carry out the building block schematic diagram of the clod wash mould of section bar clod wash.
Fig. 2 is that the present invention utilizes hydraulic press to carry out the structural representation of bolster in the clod wash mould of section bar clod wash.
Fig. 3 is that the present invention utilizes hydraulic press to carry out the connection diagram of stroke apparatus and stuck-module and roll-off module in the clod wash mould of section bar clod wash.
Fig. 4 is that the present invention utilizes clod wash mould to carry out the operating procedure schematic diagram of cold roll forming.
Detailed description of the invention
We utilize hydraulic press to carry out the clod wash mould of section bar clod wash with specific embodiment to the present invention and clod wash processing method is further elaborated by reference to the accompanying drawings below; in the hope of its structure composition and embody rule step are more clearly described, but the protection domain of patent of the present invention can not be limited with this.
The present invention is a kind of clod wash mould utilizing existing hydraulic press to carry out section bar particularly ultrashort section bar clod wash.This hydraulic press is provided with principal pressure cylinder and operation platform, this principal pressure cylinder bottom is push-down head vertically downward, this push-down head is downwards just to described operation platform, the present invention is arranged on as a kind of the section bar clod wash mould that hydraulic press uses, and its principle is that hydraulic press mechanical force is vertically downward changed into by two inclined-planes of mould the object that cross force reaches extruded.Described section bar includes angle steel, flat-bulb steel and half rounds, this section bar is equipped with into adapting to the linearly differently curved of Ship Structure.
First please see Figure 1, Fig. 1 is that the present invention utilizes hydraulic press to carry out the building block schematic diagram of the clod wash mould of section bar clod wash.As seen from the figure, hydraulic press section bar clod wash mould of the present invention is formed primarily of four significant components, is respectively stuck-module 1, roll-off module 2, mold base 3 and bolster 4, and each part of section bar clod wash mould is all be made up of 60-70mm sheet material clout.
Described stuck-module 1 entirety is the right angled triangle stood upside down, and the inclination angle of its hypotenuse is 45 degree, and described roll-off module 2 is upright right angled triangle, and the inclination angle of its hypotenuse is 45 degree, and the top of described stuck-module is fixed on described push-down head.Here stuck-module is arranged on hydraulic press principal pressure cylinder (seaming chuck) position, and stuck-module top board is identical with seaming chuck area, so that safety is fixing.The height of stuck-module is set as 2/3 of the effective impulse stroke of hydraulic press, and entirety is del, and for ensureing the pressure at right angle farthest making good use of hydraulic press, lateral surface one end is designed to 45 ° of inclined-planes.
Above-mentioned roll-off module 2 is close together by inclined-plane with stuck-module 1, is provided with the stroke apparatus 5 playing fixation between roll-off module 2 and stuck-module 1.Roll-off module 2 is similar with stuck-module 1 profile, and be upright triangle, medial surface one end is 45 ° of inclined-planes, with stuck-module just in time a positive and a negative.Roll-off module 2 respectively has the stroke apparatus 5 that is slidably connected with the both sides of stuck-module 1, stuck-module 1 is connected with sliding block 2, when principal pressure cylinder rises, stuck-module 1 drives roll-off module 2 to rise together, when principal pressure cylinder declines, the lateral surface of stuck-module 1 and the medial surface of roll-off module 2 match, and make the mechanical force vertically downward of hydraulic press change cross force into.The stroke apparatus 5 carrying out slippage connection plays the effect of the connection of two modules and the size of control descending stroke and pressure.An embedded groove is arranged at the bottom of roll-off module in addition, inserts cope match-plate pattern 41, and the effect that embedded groove plays is that cope match-plate pattern can not come off in operation, and can change various cope match-plate pattern easily, as shown in Figure 3.
Above-mentioned mold base 3 is fixed on described operation platform, and this mold base 3 is provided with madial wall, construction surface and outer lug, and the side of described stuck-module 1 can be close on described madial wall up or down.Mold base 3 guarantees that hydraulic press clod wash mould can be fixed on safely within the scope of hydraulic press workbench securely in whole operation process, the size that the size of mold base is less than hydraulic press workbench designs, to facilitate fixing and to change, the material thickness of mold base is at about 40mm, mold base entirety is c-shaped, outer low and inner high, outside one end is lower bolster installation position.
As shown in Figure 2, cope match-plate pattern 41 in above-mentioned bolster 4 is fixed on the bottom surface of described roll-off module 2, lower bolster 42 in bolster 4 is fixed in construction surface near described outer lug, what described lower bolster 42 and cope match-plate pattern 41 are relatively provided with for section bar cold roll forming is linear, the linear requirement according to product of template is determined to change lower bolster, in addition every block cope match-plate pattern installs block panel additional, the width of panel is the same with the width of the embedded groove bottom roll-off module.When installing template in panel insertion groove, cope match-plate pattern is made to protrude roll-off module.Lower bolster is arranged on outside mold base, and when pressing down, cope match-plate pattern and lower bolster are that horizontal plane coincide like this.When the principal pressure cylinder of hydraulic press rises, the spacing of mold base and roll-off module is 1/3 of whole stroke, to facilitate charging and discharging.
The invention still further relates to the method utilizing above-mentioned clod wash mould to carry out section bar clod wash, as shown in Figure 4, the method includes following steps:
The first step, according to specification requirement and the curved linear of boats and ships upper sectional material, the type of selected linear section bar, calculate curved linear flexibility, and on section bar, mark anti-straight line, this anti-straight line is turned into straight line after section bar cold roll forming;
Second step, installation clod wash mould on hydraulic press, and need selected good described bolster according to linear, prepare clod wash operation after carrying out construction debugging;
3rd step, by profile hoisting on described clod wash mould, first from one end, carry out clod wash operation, the principal pressure cylinder push-down head of hydraulic press produces pressure vertically downward, this pressure produces the pressure outside Vertical dimension through 45 degree of slide surfaces of stuck-module and roll-off module, this vertical pressure produces folding force by described cope match-plate pattern and lower bolster to described section bar, and owing to being provided with the linear face of section bar bending between described cope match-plate pattern and lower bolster, this section bar slowly produces distortion;
4th step, observes the anti-straight line on section bar when section bar is out of shape gradually, when the anti-straight line at position to be deformed becomes straight line, the hydraulic press described in time-out, stops the section bar described in extruding;
5th step, change the extrusion position of described section bar, the hydraulic press continued described in opening carries out profile extrusion until described anti-straight line becomes straight line, complete the bending operation of described section bar, this section bar cold roll forming, whether final detection section bar is qualified, proceeds extruding adjustment until qualified if defective.
Carry out in the method for section bar clod wash at the above-mentioned clod wash mould that utilizes, when the principal pressure cylinder of described hydraulic press rises, stuck-module rises with seaming chuck, described roll-off module produces moving backward of equivalent climb under stroke apparatus with the ramp effect be close to, and reserves section bar feed entrance point between described cope match-plate pattern and lower bolster.Be fixed on the cope match-plate pattern on roll-off module and be fixed between the lower bolster in mold base construction surface and be provided with linear groove, section bar linear groove between cope match-plate pattern and lower bolster forms three fulcrums, and described section bar is formed equidistant bending when the push-down head of hydraulic press declines.
The present invention, by the exploitation to hydraulic press section bar clod wash mould, solves ultrashort section bar clod wash and processes this technical barrier.Technical, the key element such as operability and economy carries out multianalysis and discussion, is not limited to the constraint of common process, proposes the new process that ultrashort section bar cold roll forming replaces manual hot briquetting.And worked out corresponding content of operation and technical measures for this reason.In practical application, achieve very satisfactory achievement.From theory and practice two aspects, solve the technical task of ultrashort section bar machine-shaping.
Claims (8)
1. the clod wash mould utilizing hydraulic press to carry out section bar clod wash, this hydraulic press is provided with principal pressure cylinder and operation platform, this principal pressure cylinder bottom is push-down head vertically downward, this push-down head is downwards just to described operation platform, it is characterized in that, described clod wash mould includes stuck-module, roll-off module, mold base and bolster, described stuck-module entirety is the right angled triangle stood upside down, the inclination angle of its hypotenuse is 45 degree, described roll-off module is upright right angled triangle, the inclination angle of its hypotenuse is 45 degree, the top of described stuck-module is fixed on described push-down head, described roll-off module and stuck-module are close together by inclined-plane, the stroke apparatus playing fixation is provided with between roll-off module and stuck-module, described mold base is fixed on described operation platform, this mold base is provided with madial wall, construction surface and outer lug, the side of described stuck-module can be close on described madial wall up or down, cope match-plate pattern in described bolster is fixed on the bottom surface of described roll-off module, lower bolster in bolster is fixed near described outer lug in construction surface, and what described lower bolster and cope match-plate pattern are relatively provided with for section bar cold roll forming is linear.
2. a kind of clod wash mould utilizing hydraulic press to carry out section bar clod wash according to claim 1, it is characterized in that, the height of described stuck-module is 2/3 of the effective impulse stroke of hydraulic press, and the topside area of this stuck-module is identical with the area of described seaming chuck.
3. a kind of clod wash mould utilizing hydraulic press to carry out section bar clod wash according to claim 1, it is characterized in that, described stroke apparatus is the buckling body of the band draw-in groove being arranged at stuck-module and roll-off module both sides, the both sides of described stuck-module and roll-off module are equipped with fin near the incline position place contacted, and described fin is embedded in corresponding draw-in groove respectively.
4. a kind of clod wash mould utilizing hydraulic press to carry out section bar clod wash according to claim 1, it is characterized in that, described section bar includes angle steel, flat-bulb steel and half rounds, this section bar is equipped with into adapting to the linearly differently curved of Ship Structure.
5. a kind of clod wash mould utilizing hydraulic press to carry out section bar clod wash according to claim 1, it is characterized in that, the bottom of described roll-off module is provided with an embedded groove, and described cope match-plate pattern can be located in embedded groove with plugging.
6. utilize the clod wash mould described in claim 1 to carry out a method for section bar clod wash, it is characterized in that, the method includes following steps:
The first step, according to specification requirement and the curved linear of boats and ships upper sectional material, the type of selected linear section bar, calculate curved linear flexibility, and on section bar, mark anti-straight line, this anti-straight line is turned into straight line after section bar cold roll forming;
Second step, installation clod wash mould on hydraulic press, and need selected good described bolster according to linear, prepare clod wash operation after carrying out construction debugging;
3rd step, by profile hoisting on described clod wash mould, first from one end, carry out clod wash operation, the principal pressure cylinder push-down head of hydraulic press produces pressure vertically downward, this pressure produces the pressure outside Vertical dimension through 45 degree of slide surfaces of stuck-module and roll-off module, this vertical pressure produces folding force by described cope match-plate pattern and lower bolster to described section bar, and owing to being provided with the linear face of section bar bending between described cope match-plate pattern and lower bolster, this section bar slowly produces distortion;
4th step, observes the anti-straight line on section bar when section bar is out of shape gradually, when the anti-straight line at position to be deformed becomes straight line, the hydraulic press described in time-out, stops the section bar described in extruding;
5th step, change the extrusion position of described section bar, the hydraulic press continued described in opening carries out profile extrusion until described anti-straight line becomes straight line, complete the bending operation of described section bar, this section bar cold roll forming, whether final detection section bar is qualified, proceeds extruding adjustment until qualified if defective.
7. a kind of method utilizing clod wash mould to carry out section bar clod wash according to claim 6, it is characterized in that, when the principal pressure cylinder of described hydraulic press rises, stuck-module rises with seaming chuck, described roll-off module produces moving backward of equivalent climb under stroke apparatus with the ramp effect be close to, and reserves section bar feed entrance point between described cope match-plate pattern and lower bolster.
8. a kind of method utilizing clod wash mould to carry out section bar clod wash according to claim 6, it is characterized in that, be fixed on the cope match-plate pattern on roll-off module and be fixed between the lower bolster in mold base construction surface and be provided with linear groove, section bar linear groove between cope match-plate pattern and lower bolster forms three fulcrums, and described section bar is formed equidistant bending when the push-down head of hydraulic press declines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410692894.5A CN104475574B (en) | 2014-11-27 | 2014-11-27 | A kind of clod wash mould utilizing hydraulic press to carry out section bar clod wash and cold-bending method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410692894.5A CN104475574B (en) | 2014-11-27 | 2014-11-27 | A kind of clod wash mould utilizing hydraulic press to carry out section bar clod wash and cold-bending method |
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| CN104475574A true CN104475574A (en) | 2015-04-01 |
| CN104475574B CN104475574B (en) | 2016-06-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052107A (en) * | 2017-03-22 | 2017-08-18 | 江苏沪宁钢机股份有限公司 | One kind cold pressing elbow pipe processing technology |
| CN109351857A (en) * | 2018-09-29 | 2019-02-19 | 安徽苏立科技股份有限公司 | A kind of heat-generating pipe molding oil pressure integration mold |
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| US4918971A (en) * | 1988-04-22 | 1990-04-24 | Osamu Makino | Bending tool |
| CN102189178A (en) * | 2011-03-24 | 2011-09-21 | 青岛鸿森重工有限公司 | High-straight-edge splint-type bending correction mould |
| CN202192163U (en) * | 2011-07-27 | 2012-04-18 | 沈阳远大铝业工程有限公司 | One-step bending forming die for anchor rods |
| CN202539369U (en) * | 2012-03-15 | 2012-11-21 | 东莞市中泰模具有限公司 | Bending mechanism of continuous mold |
| CN202621730U (en) * | 2012-06-19 | 2012-12-26 | 上海大屯能源股份有限公司 | Punching die of bending board |
| CN103028654A (en) * | 2011-09-29 | 2013-04-10 | 郝俊峰 | Clamp bend forming die |
| CN103658385A (en) * | 2012-09-18 | 2014-03-26 | 上海强精金属制品有限公司 | Bending die for producing microwave oven cavity top plate |
| CN204308041U (en) * | 2014-11-27 | 2015-05-06 | 上海江南长兴造船有限责任公司 | A kind of clod wash mould utilizing hydraulic press to carry out section bar clod wash |
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2014
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4918971A (en) * | 1988-04-22 | 1990-04-24 | Osamu Makino | Bending tool |
| CN102189178A (en) * | 2011-03-24 | 2011-09-21 | 青岛鸿森重工有限公司 | High-straight-edge splint-type bending correction mould |
| CN202192163U (en) * | 2011-07-27 | 2012-04-18 | 沈阳远大铝业工程有限公司 | One-step bending forming die for anchor rods |
| CN103028654A (en) * | 2011-09-29 | 2013-04-10 | 郝俊峰 | Clamp bend forming die |
| CN202539369U (en) * | 2012-03-15 | 2012-11-21 | 东莞市中泰模具有限公司 | Bending mechanism of continuous mold |
| CN202621730U (en) * | 2012-06-19 | 2012-12-26 | 上海大屯能源股份有限公司 | Punching die of bending board |
| CN103658385A (en) * | 2012-09-18 | 2014-03-26 | 上海强精金属制品有限公司 | Bending die for producing microwave oven cavity top plate |
| CN204308041U (en) * | 2014-11-27 | 2015-05-06 | 上海江南长兴造船有限责任公司 | A kind of clod wash mould utilizing hydraulic press to carry out section bar clod wash |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052107A (en) * | 2017-03-22 | 2017-08-18 | 江苏沪宁钢机股份有限公司 | One kind cold pressing elbow pipe processing technology |
| CN109351857A (en) * | 2018-09-29 | 2019-02-19 | 安徽苏立科技股份有限公司 | A kind of heat-generating pipe molding oil pressure integration mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104475574B (en) | 2016-06-08 |
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